In general, speaking before a group or talking on the telephone may make a personâs stuttering more severe, while singing, reading, or speaking in unison may temporarily reduce stuttering. Stuttering is sometimes referred to as stammering and by a broader term, disfluent speech. Who stutters? Roughly 3 million Americans stutter. Stuttering affects people of all ages. It occurs most often in children between the ages of 2 and 6 as they are developing their language skills. Approximately 5 to 10 percent of all children will stutter for some period in their life, lasting from a few weeks to several years.
A coordinate bond (also called a dative covalent bond) is a covalent bond (a shared pair of electrons) in which both electrons come from the same atom. A covalent bond is formed by two atoms sharing a pair of electrons. The atoms are held together because the electron pair is attracted by both of the nuclei.
Double covalent bond- consists of two pairs of shared electrons. Examples: O 2, CO 2 and H 2 CO (formaldehyde) are molecules that contain double bond. c. Triple covalent bonds- consist of three pairs of shared electrons.